  |  |  |  | |
| Available colors | ||||
| Editiorial reviews | ||||
| User rating |
| Display | yes | yes | N/A | yes |
|---|---|---|---|---|
| Display type | OLED | OLED | OLED | OLED |
| Screen resolution | N/A | N/A | 64 x 128 | 128 x 80 |
| Screen size | N/A | N/A | N/A | 0.78 in |
| Weight | 0.81 oz | 1.06 oz | 0.76 oz | 0.71 oz |
|---|
| Colour of product |
|
| Black | Black |
|---|
| Water resistant | yes | yes | N/A | yes |
|---|---|---|---|---|
| Fully Waterproof | no | yes | N/A | N/A |
| IP code (level of dust/water resistance) | IP67 | IP68 | N/A | N/A |
| Accelerometer | yes | yes | yes | yes |
| Heart rate monitor | yes | yes | yes | yes |
| Caller ID | yes | yes | N/A | N/A |
| Calorie counter | yes | yes | yes | yes |
| Distance meter | yes | yes | yes | yes |
| Pedometer | yes | yes | yes | yes |
| Sleep reading | yes | yes | yes | yes |
| Touchscreen | yes | yes | yes | yes |
| Vibration alarm | yes | yes | N/A | yes |
| Watch | yes | yes | N/A | yes |
| Altimeter | N/A | yes | N/A | N/A |
| Stopwatch | N/A | yes | yes | N/A |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| Bluetooth version | 4.0 | 4.0 | N/A | 4.2 BLE |
| GPS | no | no | N/A | no |
| NFC | no | yes | N/A | no |
| Battery life | 7.0 day | 7.0 day | 5.0 day | 20.0 day |
|---|---|---|---|---|
| Battery type | Lithium Polymer | Lithium Polymer | N/A | Lithium-Ion |
| Charging via USB | yes | yes | N/A | yes |
| Battery capacity | N/A | N/A | N/A | 110.0 mAh |
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